Automatic air-compressor



No. 310,148. Patented Dec. 30, 1884.

WITNESSES @mg W NITED STATES PATENT OFFICE.

\VALTER .I. NORRIS, OF SGRANTON, PENNSYLVANIA.

AUTOMATIC AIR-COMPRESSOR.

SPECIFICATION forming part of Letters Patent No. 310,148, dated December 30, 1884.

Application filed January 524, 1884. (N0 model.)

To all whom it may concern:

Be it known that I, WALTER J. Nonnrs, .a citizen of the United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented a new and useful Automatic Air-Compressor, of which the following is a specification, reference be ing had to the accompanying drawings.

Figure 1 is a vertical sectional view of my improved automatic air-compressor, and Fi 2 is a horizontal sectional view.

This invention has relation to automatic air-compressors; and it consists in the construction and novel arrangement of parts, as will be hereinafter fully described, and par ticularly pointed out in the claim appended.

Referring by letter to the accompanying drawings, A designates a can or case attached to a base-plate, B, by means of screws passed through the flanges 0. Packing D is placed between the base'plate and the flanges to render the chamber air-tight.

E designates a flexible diaphragm, fastened to the base-plate B, over an opening therein, by a ring, F, and screws. To this diaphragm is attached a stud, G, which, when pressure is exerted under the diaphragm, forces up the lever H, fulerumed at M, and opens the waste-valve I and allows the water which enters at \V to flow out at I.

K designates a yoke, which holds a spring, J, in place on the lever II.

L represents the water-suppl y valve, which is controlled by the lever N, fulcrumed at O, which admits the water to the chamber A of the air-compressor.

l designates a float, which slides up and down on the rod R and is actuated by the rising and falling of the water in the chamber.

V designates a cheek-valve, which prevents the air from coming back after being forced out.

T is the exhaust and air-inlet valve.

Z designates a guide-arm secured to the inner side of the chamber, below the checkvalve V, and forms one of the bearings for the rod R. The water entering at TV flows di- I rectly to the chamber A, (the water-supply valve being open,) through the passages X and Y, but exerts no immediate pressure under the diaphragm E, for the reason that passage Yis much larger than the passage X. As the water rises in the chamber A it carries up the float 1? until it strikes the crosspin S, when it closes the water-inlet valve L by means of the lever N, and at the same time ure, at which time the pressure of the water under the diaphragm E forces it 'up and opens the water-valve, allowing the water to run out. The pressure of the water holds the sup ply-valve L in a closed position, and the air inlet valve T in an open position. The float I? descends as the water runs out, and by its own weight opens the water-supply valve L, which lets off the pressure under the diaphragm E, which is forced back by the spring J, thereby closing the waste-valve, and cansing-all the parts to assume their initial positions. The rod It is pivoted at its lowest end to the lever N, which operates the waten valve L to close it, and when in its normal po sition the float rests on a cross-pin, It, passed through the rod R near its lower end. The upper end of the rod 1%, when raised, engages a lever, T, which operates the exhaustval ve T.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

The combination, with the body-case A, secured upon a base, substantially as described, and provided with a water-inlet and a water outlet, of the small passage X, the flexible dia phragm E over an opening in the base of the compressor provided with the stud G, and the pivoted lever II, provided with the yoke K. spring J ,and valve I, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto at'lixed my signature in presence of two witnesses.

XVALTER J. NORRIS.

XVitnesses:

(Jr-ms. H. CHANDLER, J as. H. TORREY.

opens the valve T, which lets off the press- 

